Desarrollo sistema nervioso periferico Flashcards

1
Q

se ha detectado actividad neural a partir de

A

Semana 6

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2
Q

toda la superficie corporal muestra actividad sensorial.

A

Semana 12

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3
Q

Movimientos espontáneos

A

Sem 7, establecimiento de las vías motoras

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4
Q

tejido del tubo neural da origen a los nervios sensoriales

A

Crestas neurales

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5
Q

tejido del tubo neural da origen a los nervios sensoriales

A

Crestas neurales

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6
Q

El subdominio pMN (Motor-Neuron) requiere de genes:

A

-Pax-6
-Olig2
-Nkx 6.1 y 6.2

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7
Q

Estadio prerreflejo:

A

Inicia en motoneuronas y luego sensitivas

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8
Q

Cierre del circuito primario

A

Fibras se extienden al lado contrario de la médula, se cierra el circuito motor-sensorial

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9
Q

Terminación de circuitos

A

Nervios llegan a su lugar final

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10
Q

Maduración

A

Nervios crecen

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11
Q

Mielinización en médula.

A

x

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12
Q

La milelinización del SNP

A

comienza en el estadio 1 (entre el mes 2 y 5).

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13
Q

Definen la segmentación de los nervios espinales

A

Somitas

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14
Q

Los somitas son de origen

A

Mesodérmico

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15
Q

Región del somita que guía el crecimiento del axon de la motoneurona

A

Rostral

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